CN116939553A - Relay terminal selection method, relay terminal selection device, terminal and storage medium - Google Patents
Relay terminal selection method, relay terminal selection device, terminal and storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
Abstract
The application discloses a relay terminal selection method, a device, a terminal and a storage medium, belonging to the technical field of communication, wherein the relay terminal selection method comprises the following steps: the remote terminal performs a first operation in case of failing to establish a relay connection for the near communication service, wherein the first operation includes at least one of: starting a first timer, wherein the first timer is used for timing related processes for establishing relay connection; and stopping the discovery process of the relay terminal executing the near-distance communication service based on a first time, wherein the first time is the maximum number of failures allowed by the far-end terminal to fail to establish the relay connection.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to a relay terminal selection method, a relay terminal selection device, a relay terminal and a storage medium.
Background
A Proximity-based Services (ProSe) is a service name for implementing a Device-to-Device (D2D) communication technology, and aims to reduce load on a serving base station by implementing direct communication of user equipment within a short range. ProSe and 5G technology are combined, a 5G ProSe supporting architecture is provided, three direct communication capabilities of unicast, broadcast and group level communication are supported, and meanwhile, single-hop relay from a terminal to a network and a PC5/Uu path selection strategy are supported.
In the ProSe scenario, a terminal (UE) determines whether to use layer 3 (L3) relay service according to a UE routing policy (UE Route Selection Policy, urs p), and when using layer 3 relay service, forwards data of the UE to a network through a layer-3UE-to-network relay UE of the 5G ProSe layer 3, which is also referred to as a layer-3remote terminal (layer-3 remote UE). Currently, the terminal determines whether to use the L3 relay service according to the urs p, and when the establishment of the relay connection based on the layer 3 relay fails, the prior art has not yet clarified the processing scheme in the above case, so that the transmission of the terminal data may be affected, resulting in poor reliability of the terminal data transmission.
Disclosure of Invention
The embodiment of the application provides a method, a device, a terminal and a storage medium for selecting a relay terminal, provides a processing scheme of a far-end terminal under the condition that a relay connection of a near-distance communication service cannot be established, and is beneficial to improving the data transmission reliability of the terminal.
In a first aspect, a method for selecting a relay terminal is provided, the method including:
the remote terminal performs a first operation in case of failing to establish a relay connection for the near communication service, wherein the first operation includes at least one of:
Starting a first timer, wherein the first timer is used for timing related processes for establishing relay connection;
and stopping the discovery process of the relay terminal executing the near-distance communication service based on a first time, wherein the first time is the maximum number of failures allowed by the far-end terminal to fail to establish the relay connection.
In a second aspect, there is provided a relay terminal selection apparatus, including:
a first processing module, configured to perform a first operation in a case where a relay connection of a near-distance communication service of a remote terminal cannot be established, where the first operation includes at least one of:
starting a first timer, wherein the first timer is used for timing related processes for establishing relay connection;
and stopping the discovery process of the relay terminal executing the near-distance communication service based on a first time, wherein the first time is the maximum number of failures allowed by the far-end terminal to fail to establish the relay connection.
In a third aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.
In a fourth aspect, a terminal is provided, including a processor and a communication interface, where the processor is configured to perform a first operation in a case where a relay connection of a short-range communication service is not established, where the first operation includes at least one of:
starting a first timer, wherein the first timer is used for timing related processes for establishing relay connection;
and stopping the discovery process of the relay terminal executing the near-distance communication service based on a first time, wherein the first time is the maximum number of failures allowed by the far-end terminal to fail to establish the relay connection.
In a fifth aspect, a relay terminal selection system is provided, including: the terminal and the network side device, the terminal may be configured to perform the steps of the relay terminal selection method described in the first aspect.
In a sixth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the steps of the method according to the first aspect.
In a seventh aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being configured to execute programs or instructions for implementing the steps of the method according to the first aspect.
In an eighth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to carry out the steps of the method according to the first aspect.
In the embodiment of the application, the remote terminal executes a first operation under the condition that the relay connection of the near-distance communication service cannot be established, wherein the first operation comprises at least one of the following steps: starting a first timer, wherein the first timer is used for timing related processes for establishing relay connection; and stopping the discovery process of the relay terminal executing the near-distance communication service based on a first time, wherein the first time is the maximum number of failures allowed by the far-end terminal to fail to establish the relay connection. In this way, the embodiment of the application provides a processing scheme of the far-end terminal under the condition that the relay connection of the near-distance communication service cannot be established, which is beneficial to improving the data transmission reliability of the terminal.
Drawings
Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;
fig. 2 is a block diagram of another wireless communication system to which embodiments of the present application are applicable;
Fig. 3 is a flowchart of a method for selecting a relay terminal according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a selecting device of a relay terminal according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a terminal according to an embodiment of the present application.
Detailed Description
The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.
It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) th Generation, 6G) communication system.
Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only a base station in the NR system is described as an example, and the specific type of the base station is not limited.
Fig. 2 is a schematic diagram of a scenario in NR supporting a terminal-to-Network Relay (UE-to-Network Relay) mechanism, where a Remote terminal (Remote UE) needs to transmit data with a Network side, but finds a Relay terminal (Relay UE) for Relay due to poor coverage, where a Uu interface is between the Relay terminal and a base station, and a sidelink (PC 5) interface is between the Relay terminal and the Remote terminal.
In the prior art, when the application layer has service data to be sent by the terminal, the terminal needs to be matched with the URSP first. Typically, each terminal will be configured with a certain number of urs, and each urs rule (urs) includes 3 parts: (1) priority information; (2) traffic descriptors (Traffic Descriptor, TD); (3) Routing descriptors (Route selection descriptor, RSD). Typically, the terminal first matches the urs Rule with the highest priority (Rule priority=1), and in the urs Rule with the highest priority, if TD meets the description of the current service (traffic), the terminal continues to match RSD. Each RSD further includes a priority, the terminal continues to match according to the priority of the RSD, and then establishes a protocol data unit (Protocol Data Unit, PDU) session of the corresponding parameter according to the matched RSD parameter.
In the ProSe scenario, the remote terminal determines whether to use the L3 relay service according to the urs p, that is, whether to relay the data of the remote terminal to the network through a relay terminal (5G ProSe layer-3UE-to-network relay UE) of the 5G ProSe layer-3 terminal to the network, where the remote terminal may also be referred to as a 5G layer-3remote terminal (5G layer-3remote UE).
In the prior art, the logic of the remote terminal matching the URSP to use the L3 relay service is (1) determining whether TD matches application information; (2) In the RSDs, finding the highest priority RSD which is not matched yet for matching; (3) When matching by RSD priority, if an offload indication (offload indication) is included in the current (highest ranked) RSD and the remote terminal is authorized as a layer 3 remote terminal (L3 remote UE), the remote terminal indicates the upper layer and stops selecting the next RSD.
The matching logic has the following problems: when the remote terminal cannot find a suitable 5G ProSe UE-to-Network layer-3relay UE (e.g. U2N relay discoevry procedure fails, or U2N relay selection procedure fails, or there is no suitable L3U 2N relay UE in the vicinity of the remote terminal), the remote terminal may not be able to transmit the data to be transmitted, and the possible reasons for the data to be unable to be transmitted are: there is no suitable L3 relay terminal near the far-end terminal, and the far-end terminal repeatedly performs the discovery process of the L3 relay terminal all the time but always fails to perform.
The following describes in detail a method, an apparatus, a terminal, and a storage medium for selecting a relay terminal according to embodiments of the present application through some embodiments and application scenarios thereof with reference to the accompanying drawings.
In the embodiment of the application, the far-end terminal can discover the layer 3 relay terminal by executing the discovery process of the relay terminal based on the layer 3 near-distance communication service (ProSe). Further, after discovering the layer 3 relay terminal, the remote terminal may establish a PC5 connection with the layer 3 relay terminal, thereby establishing a relay connection between the remote terminal and the network based on the layer 3 relay terminal. When the establishment of the PC5 connection with the layer 3 relay terminal fails, the discovery process of the relay terminal that continues to perform the layer 3 near proximity communication service (ProSe), the establishment of the PC5 connection with the layer 3 relay terminal, and the like may be repeated. The relay connection from the terminal based on the layer 3 relay terminal to the network is sometimes simply called as a relay connection based on the layer 3 relay terminal.
In the embodiment of the application, the far-end terminal can discover the relay terminal of the layer 2 by executing the discovery process of the relay terminal of the layer 2 near-distance communication service. Further, after discovering the layer 2 relay terminal, the remote terminal may establish a PC5 connection with the layer 2 relay terminal, thereby establishing a relay connection between the remote terminal and the network based on the layer 2 relay terminal. The relay connection from the terminal based on the layer 2 relay terminal to the network is sometimes simply called as a relay connection based on the layer 2 relay terminal. When the establishment of the PC5 connection with the layer 2 relay terminal fails, the discovery process of the relay terminal that continues to perform the layer 2 near proximity communication service (ProSe), the establishment of the PC5 connection with the layer 2 relay terminal, and the like may be repeated.
In the embodiment of the present application, the discovery process of the relay terminal performing the near-distance communication service may include: a discovery procedure of a relay terminal based on the layer 2 near field communication service is performed and/or a discovery procedure of a relay terminal based on the layer 3 near field communication service is performed. The relay connection of the near communication traffic may comprise a terminal-to-network relay connection based on a layer 3 relay terminal and/or a terminal-to-network relay connection based on a layer 2 relay terminal.
Referring to fig. 3, fig. 3 is a flowchart of a method for selecting a relay terminal according to an embodiment of the present application, where the method is performed by a remote terminal, and as shown in fig. 3, the method includes the following steps:
step 301, the remote terminal performs a first operation in case of failing to establish a relay connection of a near-distance communication service, wherein the first operation includes at least one of the following:
starting a first timer, wherein the first timer is used for timing related processes for establishing relay connection;
and stopping the discovery process of the relay terminal executing the near-distance communication service based on a first time, wherein the first time is the maximum number of failures allowed by the far-end terminal to fail to establish the relay connection.
In the embodiment of the application, the remote terminal can discover the relay terminal through executing the discovery process of the relay terminal of the near-distance communication service, and further establishes the relay connection of the near-distance communication service by establishing the PC5 connection with the relay terminal. The relay connection of the short-range communication service may include: a layer 3 relay terminal based terminal to network relay connection and/or a layer 2 relay terminal based terminal to network relay connection. The remote terminal performs the first operation in the case that the relay connection of the near-distance communication service is not established: for example, a first timer is started for the relevant procedure for setting up a relay connection. The related process for establishing the relay connection may specifically include a discovery process of the relay terminal executing the layer 2/layer 3-based short-range communication service, a PC5 connection establishment process with the layer 2/layer 3 relay terminal, and the like; for another example, the remote terminal may count the number of failures in establishing the relay connection of the near-distance communication service in the process of establishing the relay connection, and stop the discovery process of the relay terminal performing the near-distance communication service when the number of failures reaches the first number.
Through the steps, the embodiment of the application provides a processing scheme of the far-end terminal under the condition that the far-end terminal fails to establish the relay connection of the near-distance communication service, and the far-end terminal can stop the discovery process of the relay terminal for executing the near-distance communication service based on the first timer or the first times, so that the far-end terminal can try to establish the relay connection to the network by executing other processes, thereby being beneficial to improving the reliability of data transmission of the terminal.
In an embodiment of the present application, the first timer may include a layer 3 timer, where the layer 3 timer is specifically configured to time a related procedure for establishing a relay connection based on the layer 3 relay terminal. The related process of establishing the relay connection based on the layer 3 relay terminal may specifically include: a discovery process of a relay terminal based on a layer 3 near field communication service is performed, a PC5 connection is established with the layer 3 relay terminal, a discovery process of the relay terminal based on the layer 3 near field communication service is re-performed when the establishment of the PC5 connection fails, and the like. After the expiration of the layer 3 timer, the remote terminal may stop the discovery process of the relay terminal performing the layer 3-based short-range communication service.
In an embodiment of the present application, the first timer may include a layer 2 timer, where the layer 2 timer is specifically configured to time a related procedure for establishing a relay connection based on the layer 2 relay terminal. The related process of establishing the relay connection based on the layer 2 relay terminal may specifically include: a discovery process of a relay terminal based on a layer 2 near field communication service is performed, a PC5 connection is established with the layer 2 relay terminal, a discovery process of the relay terminal based on the layer 2 near field communication service is re-performed when the establishment of the PC5 connection fails, and the like. After the expiration of the layer 2 timer, the remote terminal may stop the discovery process of the relay terminal performing the layer 2-based short-range communication service.
The above embodiments provide specific timing modes for the layer 3 and layer 2 timers respectively, so that adverse effects on terminal data transmission caused by long-time stay in the discovery process can be avoided or reduced by triggering related operations after the timers expire, and further reliability of terminal data transmission can be provided.
In the embodiment of the present application, the first number includes a layer 3 threshold, where the layer 3 threshold is a maximum number of failure times allowed by the remote terminal to fail to establish a relay connection based on a layer 3 relay terminal. In the case that the failure number of the relay connection based on the layer 3 relay terminal reaches the layer 3 threshold, the remote terminal stops the discovery process of the relay terminal executing the near-distance communication service, specifically, stops the discovery process of the relay terminal executing the near-distance communication service based on the layer 3.
In the embodiment of the present application, the first number includes a layer 2 threshold, where the layer 2 threshold is a maximum number of failure times allowed by the remote terminal to fail to establish a relay connection based on a layer 2 relay terminal. In the case that the failure number of the relay connection based on the layer 2 relay terminal reaches the layer 2 threshold, the remote terminal stops the discovery process of the relay terminal executing the near-distance communication service, specifically, stops the discovery process of the relay terminal executing the near-distance communication service based on the layer 2.
The layer 3 threshold value and the layer 2 threshold value are respectively given for the first time, so that an implementation mode of the end discovery process can be given for the layer 3/layer 2 relay terminal, the terminal can stop the discovery process in time, adverse effects on terminal data transmission caused by long-time stay in the discovery process are avoided or reduced, and further reliability of terminal data transmission can be provided.
Optionally, the expiration time and/or the first number of times of the first timer may be determined by the remote terminal according to at least one of:
1) Hardware capabilities of the remote terminal.
For example, when the hardware capability of the remote terminal is strong, the expiration time of the first time count/first timer may be set to be larger, whereas when the hardware capability is weak, the expiration time of the first time count/first timer may be set to be smaller.
2) And the service type of the remote terminal.
For example, in the embodiment of the present application, the corresponding first times/expiration time of the first timer may be set in advance for different service types, and then the currently adopted first times/expiration time of the first timer may be determined according to the specific service type.
3) QoS requirements of the remote terminal.
For example, when the QoS requirement of the remote terminal is high, the expiration time of the first count/first timer may be set smaller, whereas when the QoS requirement is low, the expiration time of the first count/first timer may be set larger.
4) And the remote terminal is provided with parameter policy information related to the short-distance service.
For example, related parameter policy information, such as an index of delay requirement, reliability requirement, etc., may be configured for the short-range service, and then the first number of times/expiration time of the first timer may be determined according to the related parameter policy information for the short-range service.
According to the implementation mode, the first times or the expiration time of the first timer are set according to the factors such as the self hardware capacity of the remote terminal, the service type, the QoS requirement or the parameter policy information related to the short-distance service, and the like, so that the expiration time of the first times or the first timer can be flexibly adjusted according to the factors so as to meet the requirements of different terminals, service types or policies.
As an optional implementation manner, in the foregoing step 301, when the relay connection of the short-range communication service includes a terminal-to-network relay connection of a layer 3 relay terminal, the first operation performed by the remote terminal may further include at least one of the following:
1) The urs rules are re-matched starting with the highest priority urs rule.
In the event that a layer 3 relay terminal-based relay connection is not established, the remote terminal may re-match the urs rules to re-determine whether to use the L3 relay service. For example, since it usually takes a certain time to establish a relay connection for a short-range communication service, when the former establishment of the relay connection fails, the location or channel environment of the remote terminal or the relay terminal may change due to the lapse of a period of time, so that the urs rule may be re-matched to continue to attempt to establish the relay connection.
2) The discovery procedure of the relay terminal based on the layer 2 short-range communication service is performed.
In the case of failing to establish a layer 3 relay terminal-based relay connection, it is explained that there may be no eligible layer 3 relay terminal around the current far-end terminal, and therefore, the far-end terminal may also attempt to establish a layer 2 relay terminal-based relay connection. At this time, the far-end terminal may perform a discovery procedure of the relay terminal based on the layer 2 near communication service to discover the layer 2 relay terminal. Further, after discovering the layer 2 relay terminal, the remote terminal may also establish a PC5 connection with the layer 2 relay terminal.
3) And establishing a PC5 connection with the layer 2 relay terminal.
In some cases, the remote terminal may have already determined its surrounding layer 2 relay terminals, at which point the remote terminal need not perform the discovery procedure of the layer 2-based near communication service relay terminal any more, but establishes a PC5 connection directly with the layer 2 relay terminal.
Through the steps, the embodiment of the application can re-match URSP rules under the condition that the relay connection based on the layer 3 relay terminal is failed, or establish the relay connection based on the layer 2 relay terminal so as to establish the relay connection as soon as possible and ensure the data transmission of the far-end terminal.
As another optional implementation manner, in step 301, when the relay connection of the short-range communication service includes a terminal-to-network relay connection of a layer 2 relay terminal, the first operation performed by the remote terminal may further include at least one of the following:
1) The discovery procedure of the relay terminal based on the layer 3 short-range communication service is performed.
In the case of failing to establish a layer 2 relay terminal-based relay connection, it is explained that there may be no eligible layer 2 relay terminal around the current far-end terminal, and therefore, the far-end terminal may also attempt to establish a layer 3 relay terminal-based relay connection. At this time, the far-end terminal may perform a discovery procedure of the relay terminal based on the layer 3 short-range communication service to discover the layer 3 relay terminal. Further, after discovering the layer 3 relay terminal, the remote terminal may also establish a PC5 connection with the layer 3 relay terminal.
2) And establishing a PC5 connection with the layer 3 relay terminal.
Similarly, in some cases, the remote terminal may have already determined its surrounding layer 3 relay terminals, at which point the remote terminal need not perform the discovery process of the layer 3-based relay terminal for near-distance communication services, but rather establishes a PC5 connection directly with the layer 3 relay terminal.
Through the steps, the embodiment of the application can try to establish the relay connection based on the layer 3 relay terminal under the condition that the relay connection based on the layer 2 relay terminal is failed to establish the relay connection as soon as possible, and ensures the data transmission of the far-end terminal.
In the step 301, when the remote terminal fails to establish the relay connection of the short-range communication service, the method may include: and the remote terminal fails to execute the second operation. In particular, the second operation may include at least one of:
a) The discovery process of the relay terminal of the near-field communication service is performed.
Here, the discovery procedure of the relay terminal performing the short-range communication service may specifically include: a discovery procedure of a relay terminal based on the layer 3 near field communication service is performed and/or a discovery procedure of a relay terminal based on the layer 2 near field communication service is performed. The failure of the above procedure may be specifically that a discovery procedure is performed, but the relay terminal is not discovered.
b) And selecting a relay terminal of the short-range communication service.
Here, the relay terminal selecting the short-range communication service may include: selecting a layer 2 relay terminal of the near field communication service and/or selecting a layer 3 relay terminal of the near field communication service. The failure to select the relay terminal may specifically be failure to select a relay terminal that meets a preset condition, although the relay terminal exists.
c) A PC5 connection with a relay terminal of a near-field communication service is established.
Here, establishing the PC5 connection with the relay terminal of the near-distance communication service may include: establishes a PC5 connection with a layer 3 relay terminal of the near field communication service and/or establishes a PC5 connection with a layer 2 relay terminal of the near field communication service. The connection establishment failure of the PC5 may specifically be that the remote terminal transmits a connection establishment request message, but the request message is rejected, or fails to receive a connection response message of the relay terminal.
d) The PC5 connection with the relay terminal of the near-field communication service is activated.
Here, in case a PC5 connection has been connected between the far-end terminal and the layer 2 or layer 3 relay terminal, the far-end may activate the PC5 connection to activate the far-end terminal to network relay connection. If the activation request is denied, or no response is received, the activation may be deemed to have failed.
In an embodiment of the present application, before the step 301, the method may further include: the remote terminal successfully matches the first RSD of the first urs rule. For example, when the application layer of the remote terminal needs to send data of a certain service, the remote terminal matches the urs rule according to the priority order of the urs rule. When the TD in the matched first URSP rule accords with the description of the service, the remote terminal continuously matches each RSD under the first URSP rule according to the priority order of the RSDs, and the remote terminal is authorized to serve as a layer 3 remote terminal (L3 remote UE) under the assumption that the first RSD comprises a near-layer 3 terminal-to-network relay offload indication (5G ProSe layer-3UE-to-network relay offload indication), and then the first RSD successfully matched with the first URSP rule is judged. At this time, the remote terminal may perform a discovery procedure of the relay terminal for the layer 3-based short range communication service according to the parameters of the first RSD to establish a relay connection for the short range communication service.
In an embodiment of the present application, after performing the first operation in step 301, the remote terminal may further perform a third operation based on the first condition. Wherein the first condition may specifically include at least one of:
1) The discovery process of the relay terminal of the near-distance communication service fails;
2) The connection establishment with the PC5 of the relay terminal fails;
3) The first timer expiring;
4) The number of times of failure allowed by the remote terminal to fail to establish relay connection reaches the first number of times;
the third operation includes at least one of:
1) Re-matching the URSP rules starting from the highest priority UE routing policy URSP rules;
2) A second RSD matching RSD priority equal to or lower than the first RSD;
3) And a second URSP having a matching URSP priority equal to or lower than the first URSP.
That is, after executing the first operation in step 301, the remote terminal determines whether the first condition is satisfied, and if so, executes the above third operation, so as to continue to perform the matching of the urs rule or the RSD therein, so as to establish a relay connection with the layer 3 relay terminal, realize the service data transmission of the remote terminal, and ensure the reliability of the data transmission of the remote terminal.
According to the relay terminal selection method provided by the embodiment of the application, the execution main body can be a relay terminal selection device. In the embodiment of the present application, a method for selecting a relay terminal by using a selecting device for a relay terminal is taken as an example, and the selecting device for a relay terminal provided in the embodiment of the present application is described.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a selecting device for a relay terminal according to an embodiment of the present application, where the device may be applied to a remote terminal, and as shown in fig. 4, the selecting device 400 for a relay terminal includes:
a first processing module 401, configured to perform a first operation in a case where a relay connection of a near-distance communication service of a remote terminal cannot be established, where the first operation includes at least one of:
starting a first timer, wherein the first timer is used for timing related processes for establishing relay connection;
and stopping the discovery process of the relay terminal executing the near-distance communication service based on a first time, wherein the first time is the maximum number of failures allowed by the far-end terminal to fail to establish the relay connection.
Optionally, the first timer includes a layer 3 timer, and the first processing module is further configured to stop, after expiration of the layer 3 timer, a discovery procedure of the relay terminal that performs layer 3-based short-range communication service.
Optionally, the first timer includes a layer 2 timer, and the first processing module is further configured to stop, after expiration of the layer 2 timer, the discovery procedure of the relay terminal that performs the layer 2-based short-range communication service.
Optionally, the first number includes a layer 3 threshold, and the first processing module is further configured to stop a discovery procedure of the relay terminal that performs the short-range communication service after reaching the layer 3 threshold;
the layer 3 threshold is the maximum value of the number of failures allowed by the far-end terminal to fail to establish the relay connection based on the layer 3 relay terminal.
Optionally, the first number includes a layer 2 threshold, and the first processing module is further configured to stop a discovery process of the relay terminal that performs the short-range communication service after reaching the layer 2 threshold, where the layer 2 threshold is a maximum number of failure times allowed by the remote terminal to fail to establish a relay connection based on the layer 2 relay terminal.
Optionally, the relay connection of the short-range communication service includes at least one of the following:
a relay connection of the terminal to the network based on the relay terminal of layer 2;
terminal-to-network relay connection based on layer 3 relay terminals.
Optionally, in case the relay connection of the near field communication service comprises a terminal-to-network relay connection of a layer 3 based relay terminal, the first operation further comprises at least one of:
re-matching the URSP rules starting from the highest priority UE routing policy URSP rules;
Performing a discovery procedure of a relay terminal based on the layer 2 short-range communication service;
and establishing a PC5 connection with the layer 2 relay terminal.
Optionally, in case the relay connection of the near field communication service comprises a terminal-to-network relay connection of a layer 2 based relay terminal, the first operation further comprises at least one of:
performing a discovery procedure of a relay terminal based on the layer 3 short-range communication service;
and establishing a PC5 connection with the layer 3 relay terminal.
Optionally, the remote terminal fails to establish a relay connection for the near-distance communication service, including:
the remote terminal fails to execute the second operation;
wherein the second operation includes at least one of:
executing the discovery process of the relay terminal of the near-distance communication service;
selecting a relay terminal of a short-range communication service;
establishing a PC5 connection with a relay terminal of the near-distance communication service;
the PC5 connection with the relay terminal of the near-field communication service is activated.
Optionally, the apparatus further includes:
and the matching module is used for successfully matching the first routing descriptor RSD of the first URSP rule before the remote terminal fails to establish the relay connection of the near-distance communication service.
Optionally, the apparatus further includes:
A second processing module for performing a third operation based on the first condition after performing the first operation;
wherein the first condition includes at least one of:
the discovery process of the relay terminal of the near-distance communication service fails;
the connection establishment with the PC5 of the relay terminal fails;
the first timer expiring;
the number of times of failure allowed by the remote terminal to fail to establish relay connection reaches the first number of times;
wherein the third operation includes at least one of:
re-matching the URSP rules starting from the highest priority UE routing policy URSP rules;
a second RSD matching RSD priority equal to or lower than the first RSD;
and a second URSP having a matching URSP priority equal to or lower than the first URSP.
Optionally, the expiration time and/or the first number of times of the first timer is determined by the remote terminal according to at least one of:
hardware capabilities of the remote terminal;
the service type of the remote terminal;
QoS requirements of the remote terminal;
and the remote terminal is provided with parameter policy information related to the short-distance service.
The selecting device of the relay terminal provides a processing scheme of the remote terminal under the condition that the relay connection of the near-distance communication service cannot be established, and is beneficial to improving the data transmission reliability of the terminal.
The selecting device 30 of the relay terminal in the embodiment of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.
The selecting device of the relay terminal provided by the embodiment of the present application can implement each process implemented by the method embodiment of fig. 3, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.
Optionally, as shown in fig. 5, the embodiment of the present application further provides a communication device 50, including a processor 51 and a memory 52, where the memory 52 stores a program or instructions that can be executed on the processor 51, for example, when the communication device 50 is a terminal, the program or instructions implement the steps of the above-mentioned relay terminal selection method embodiment when executed by the processor 51, and achieve the same technical effects. When the communication device 50 is a network side device, the program or the instruction, when executed by the processor 51, implements the steps of the foregoing embodiment of the method for selecting a relay terminal, and the same technical effects can be achieved, so that repetition is avoided, and detailed description is omitted.
The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for executing a first operation under the condition that the relay connection of the near-distance communication service of the terminal is not established, and the first operation comprises at least one of the following steps: starting a first timer, wherein the first timer is used for timing related processes for establishing relay connection; and stopping the discovery process of the relay terminal executing the near-distance communication service based on a first time, wherein the first time is the maximum failure time allowed by the terminal and not used for establishing the relay connection. The terminal embodiment corresponds to the remote terminal side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved.
Specifically, fig. 6 is a schematic diagram of a hardware structure of a terminal (remote terminal) for implementing an embodiment of the present application.
The terminal 600 includes, but is not limited to: at least some of the components of the radio frequency unit 601, the network module 602, the audio output unit 603, the input unit 604, the sensor 605, the display unit 606, the user input unit 607, the interface unit 608, the memory 609, and the processor 610, etc.
Those skilled in the art will appreciate that the terminal 600 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically coupled to the processor 610 by a power management system so as to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 6 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.
It should be appreciated that in embodiments of the present application, the input unit 604 may include a graphics processing unit (Graphics Processing Unit, GPU) 6041 and a microphone 6042, with the graphics processor 6041 processing image data of still pictures or video obtained by an image capturing apparatus (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 607 includes at least one of a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include two parts of a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.
In the embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 601 may transmit the downlink data to the processor 610 for processing; in addition, the radio frequency unit 601 may send uplink data to the network side device. Typically, the radio frequency unit 601 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
The memory 609 may be used to store software programs or instructions and various data. The memory 609 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 609 may include volatile memory or nonvolatile memory, or the memory 609 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 609 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.
The processor 610 may include one or more processing units; optionally, the processor 610 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, etc., and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 610.
Wherein the processor 610 is configured to perform a first operation in a case where a relay connection of a short-range communication service is not established, where the first operation includes at least one of:
starting a first timer, wherein the first timer is used for timing related processes for establishing relay connection;
and stopping the discovery process of the relay terminal executing the near-distance communication service based on a first time, wherein the first time is the maximum failure time allowed by the terminal and not used for establishing the relay connection.
The terminal realizes the solution under the condition that the relay connection of the near-distance communication service cannot be established, and is beneficial to improving the data transmission reliability of the terminal.
Optionally, the first timer includes a layer 3 timer, and the processor 610 is further configured to stop the discovery procedure of the relay terminal that performs the layer 3-based short-range communication service after the layer 3 timer expires.
Optionally, the first timer includes a layer 2 timer, and the processor 610 is further configured to stop the discovery procedure of the relay terminal performing the layer 2-based short-range communication service after the layer 2 timer expires.
Optionally, the first number includes a layer 3 threshold, and the processor 610 is further configured to stop a discovery procedure of the relay terminal that performs the short-range communication service after reaching the layer 3 threshold;
the layer 3 threshold is the maximum value of the number of failures allowed by the far-end terminal to fail to establish the relay connection based on the layer 3 relay terminal.
Optionally, the first number includes a layer 2 threshold, and the processor 610 is further configured to stop the discovery process of the relay terminal that performs the short-range communication service after reaching the layer 2 threshold, where the layer 2 threshold is a maximum number of failures allowed by the remote terminal to fail to establish the relay connection based on the layer 2 relay terminal.
Optionally, the relay connection of the short-range communication service includes at least one of the following:
a relay connection of the terminal to the network based on the relay terminal of layer 2;
terminal-to-network relay connection based on layer 3 relay terminals.
Optionally, in case the relay connection of the near field communication service comprises a terminal-to-network relay connection of a layer 3 based relay terminal, the first operation further comprises at least one of:
Re-matching the URSP rules starting from the highest priority UE routing policy URSP rules;
performing a discovery procedure of a relay terminal based on the layer 2 short-range communication service;
and establishing a PC5 connection with the layer 2 relay terminal.
Optionally, in case the relay connection of the near field communication service comprises a terminal-to-network relay connection of a layer 2 based relay terminal, the first operation further comprises at least one of:
performing a discovery procedure of a relay terminal based on the layer 3 short-range communication service;
and establishing a PC5 connection with the layer 3 relay terminal.
Optionally, the remote terminal fails to establish a relay connection for the near-distance communication service, including:
the remote terminal fails to execute the second operation;
wherein the second operation includes at least one of:
executing the discovery process of the relay terminal of the near-distance communication service;
selecting a relay terminal of a short-range communication service;
establishing a PC5 connection with a relay terminal of the near-distance communication service;
the PC5 connection with the relay terminal of the near-field communication service is activated.
Optionally, the processor 610 is further configured to successfully match the first routing descriptor RSD of the first urs rule before the remote terminal fails to establish the relay connection of the short-range communication service.
Optionally, the processor 610 is further configured to perform a third operation based on the first condition after performing the first operation;
wherein the first condition includes at least one of:
the discovery process of the relay terminal of the near-distance communication service fails;
the connection establishment with the PC5 of the relay terminal fails;
the first timer expiring;
the number of times of failure allowed by the remote terminal to fail to establish relay connection reaches the first number of times;
wherein the third operation includes at least one of:
re-matching the URSP rules starting from the highest priority UE routing policy URSP rules;
a second RSD matching RSD priority equal to or lower than the first RSD;
and a second URSP having a matching URSP priority equal to or lower than the first URSP.
Optionally, the expiration time and/or the first number of times of the first timer is determined by the remote terminal according to at least one of:
hardware capabilities of the remote terminal;
the service type of the remote terminal;
QoS requirements of the remote terminal;
and the remote terminal is provided with parameter policy information related to the short-distance service.
The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above-mentioned relay terminal selection method embodiment, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.
Wherein the processor is a processor in the remote terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.
The embodiment of the application further provides a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running a program or instructions, the processes of the embodiment of the method for selecting the relay terminal can be realized, the same technical effects can be achieved, and the repetition is avoided, and the description is omitted here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.
The embodiment of the present application further provides a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the above-mentioned relay terminal selection method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated here.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.
Claims (15)
1. A relay terminal selection method, comprising:
the remote terminal performs a first operation in case of failing to establish a relay connection for the near communication service, wherein the first operation includes at least one of:
starting a first timer, wherein the first timer is used for timing related processes for establishing relay connection;
and stopping the discovery process of the relay terminal executing the near-distance communication service based on a first time, wherein the first time is the maximum number of failures allowed by the far-end terminal to fail to establish the relay connection.
2. The method of claim 1, wherein the first timer comprises a layer 3 timer, wherein the remote terminal stops performing a discovery procedure of a relay terminal for layer 3-based near communication traffic after expiration of the layer 3 timer.
3. The method of claim 1, wherein the first timer comprises a layer 2 timer, wherein the remote terminal stops performing a discovery procedure of a relay terminal for layer 2-based near communication traffic after expiration of the layer 2 timer.
4. The method of claim 1, wherein the first number comprises a layer 3 threshold, wherein the remote terminal stops a discovery procedure of a relay terminal performing a near field communication service after reaching the layer 3 threshold;
The layer 3 threshold is the maximum value of the number of failures allowed by the far-end terminal to fail to establish the relay connection based on the layer 3 relay terminal.
5. The method of claim 1, wherein the first number comprises a layer 2 threshold, wherein the far-end terminal stops a discovery process of a relay terminal performing a near-distance communication service after reaching the layer 2 threshold, the layer 2 threshold being a maximum number of failures allowed by the far-end terminal to fail to establish a layer 2 relay terminal-based relay connection.
6. The method of claim 1, wherein the relay connection of the near field communication service comprises at least one of:
a relay connection of the terminal to the network based on the relay terminal of layer 2;
terminal-to-network relay connection based on layer 3 relay terminals.
7. The method of claim 6, wherein in the case where the relay connection of the near field communication service comprises a terminal-to-network relay connection of a layer 3 based relay terminal, the first operation further comprises at least one of:
re-matching the URSP rules starting from the highest priority UE routing policy URSP rules;
performing a discovery procedure of a relay terminal based on the layer 2 short-range communication service;
And establishing a PC5 connection with the layer 2 relay terminal.
8. The method of claim 6, wherein in the case where the relay connection of the near field communication service comprises a terminal-to-network relay connection of a layer 2 based relay terminal, the first operation further comprises at least one of:
performing a discovery procedure of a relay terminal based on the layer 3 short-range communication service;
and establishing a PC5 connection with the layer 3 relay terminal.
9. The method according to any of claims 1-8, wherein the remote terminal failing to establish a relay connection for short-range traffic, comprising:
the remote terminal fails to execute the second operation;
wherein the second operation includes at least one of:
executing the discovery process of the relay terminal of the near-distance communication service;
selecting a relay terminal of a short-range communication service;
establishing a PC5 connection with a relay terminal of the near-distance communication service;
the PC5 connection with the relay terminal of the near-field communication service is activated.
10. The method according to any of claims 1-9, wherein the remote terminal, before failing to establish a relay connection for short-range traffic, comprises:
the remote terminal successfully matches the first routing descriptor RSD of the first urs rule.
11. The method of any of claims 1-10, wherein after performing the first operation, the method further comprises:
the remote terminal executes a third operation based on the first condition;
wherein the first condition includes at least one of:
the discovery process of the relay terminal of the near-distance communication service fails;
the connection establishment with the PC5 of the relay terminal fails;
the first timer expiring;
the number of times of failure allowed by the remote terminal to fail to establish relay connection reaches the first number of times;
wherein the third operation includes at least one of:
re-matching the URSP rules starting from the highest priority UE routing policy URSP rules;
a second RSD matching RSD priority equal to or lower than the first RSD;
and a second URSP having a matching URSP priority equal to or lower than the first URSP.
12. The method according to any of claims 1-11, wherein the expiration time and/or the first number of times of the first timer is determined by the remote terminal based on at least one of:
hardware capabilities of the remote terminal;
the service type of the remote terminal;
QoS requirements of the remote terminal;
And the remote terminal is provided with parameter policy information related to the short-distance service.
13. A relay terminal selecting apparatus, comprising:
a first processing module, configured to perform a first operation in a case where a relay connection of a near-distance communication service of a remote terminal cannot be established, where the first operation includes at least one of:
starting a first timer, wherein the first timer is used for timing related processes for establishing relay connection;
and stopping the discovery process of the relay terminal executing the near-distance communication service based on a first time, wherein the first time is the maximum number of failures allowed by the far-end terminal to fail to establish the relay connection.
14. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the relay terminal selection method of any of claims 1 to 12.
15. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the relay terminal selection method according to any of claims 1 to 12.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210323854.8A CN116939553A (en) | 2022-03-29 | 2022-03-29 | Relay terminal selection method, relay terminal selection device, terminal and storage medium |
| PCT/CN2023/084386 WO2023185841A1 (en) | 2022-03-29 | 2023-03-28 | Method and apparatus for selecting relay user equipment, and user equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210323854.8A CN116939553A (en) | 2022-03-29 | 2022-03-29 | Relay terminal selection method, relay terminal selection device, terminal and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116939553A true CN116939553A (en) | 2023-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210323854.8A Pending CN116939553A (en) | 2022-03-29 | 2022-03-29 | Relay terminal selection method, relay terminal selection device, terminal and storage medium |
Country Status (2)
| Country | Link |
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| CN (1) | CN116939553A (en) |
| WO (1) | WO2023185841A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014031829A2 (en) * | 2012-08-23 | 2014-02-27 | Interdigital Patent Holdings, Inc. | Method and apparatus for performing device-to-device discovery |
| US9781567B2 (en) * | 2015-10-02 | 2017-10-03 | Lg Electronics Inc. | Method for performing a proximity service and user equipment |
| CN112514520A (en) * | 2020-11-04 | 2021-03-16 | 北京小米移动软件有限公司 | Method and device for reselecting relay UE, communication equipment and storage medium |
| CN113396611B (en) * | 2021-05-07 | 2024-01-30 | 北京小米移动软件有限公司 | Access failure processing method, device, terminal equipment and storage medium |
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- 2022-03-29 CN CN202210323854.8A patent/CN116939553A/en active Pending
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| WO2023185841A1 (en) | 2023-10-05 |
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